CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Net (loss) income	$ (20,860)	$ 7,410
Other comprehensive income (loss), net of tax [Abstract]
Unrealized gain on derivatives designated and qualified as cash flow hedges	1,210	395
Reclassification of unrealized loss on derivatives designated and qualified as cash flow hedges	461	181
Unrecognized net pension and other postretirement benefit (loss) gain	(3,310)	2,607
Reclassification of net pension and other postretirement benefit loss	2,565	1,960
Foreign currency translation adjustments	31,946	(35,426)
Total other comprehensive income (loss), net of tax	32,872	(30,283)
Total comprehensive income (loss)	12,012	(22,873)
Less: comprehensive income (loss) attributable to noncontrolling interests	2,093	(449)
Comprehensive income (loss) attributable to Kennametal Shareholders	$ 9,919	$ (22,424)